Effect of the temperature gradient, growth rate, and the interflake spacing on the microhardness in the directionally solidified Al-Si eutectic alloy

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dc.contributor.authorKaya, H
dc.contributor.authorCadirli, E
dc.contributor.authorGunduz, M
dc.contributor.authorUlgen, A
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2003
dc.departmentNiğde ÖHÜ
dc.description.abstractAn alloy of composition Al-12.6 wt.% Si was prepared using metals of 99.99% purity. Weighed amounts of aluminium and silicon were melted in the vacuum-melting furnace. This irregular eutectic alloys were directionally solidified upward with a constant growth rate V (8.3 x 10(-3) mm/s) and different temperature gradients G (2.0-7.8 K/mm) and also with a constant temperature gradient G (7.8 K/mm) and different growth rates V (8.3-498.7 x 10(-3) mm/s) in the directional solidification furnace. The interflake spacings lambda and microhardness H-nu were measured from both transverse section and longitudinal section of the specimen. The variations of H, with respect to G, V, and lambda have been determined by using the linear regression analysis method. It has been shown that H-nu increases with the increasing values of G and V. On the other hand H-nu values decreases with the increasing lambda values. The Hall-Petch type relationships obtained in this work have been compared with the previous works.
dc.identifier.doi10.1361/105994903100277201
dc.identifier.endpage551
dc.identifier.issn1059-9495
dc.identifier.issue5
dc.identifier.scopus2-s2.0-0242334177
dc.identifier.scopusqualityQ2
dc.identifier.startpage544
dc.identifier.urihttps://dx.doi.org/10.1361/105994903100277201
dc.identifier.urihttps://hdl.handle.net/11480/5697
dc.identifier.volume12
dc.identifier.wosWOS:000186000000009
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherASM INTERNATIONAL
dc.relation.ispartofJOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAl-Si eutectic alloy
dc.subjectHall-Petch relationships
dc.subjectinterflake spacings
dc.subjectmicrohardness
dc.titleEffect of the temperature gradient, growth rate, and the interflake spacing on the microhardness in the directionally solidified Al-Si eutectic alloy
dc.typeArticle

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